You can't lose weight by doing push-ups. Because the fat of obese people is mainly concentrated in thighs and stomachs. Push-ups can't exercise these places at all. Moreover, the key to losing weight is burning fat. If the continuous exercise time is less than 30 minutes, the body just breaks down the stored sugar and can't burn fat at all. Only when you exercise for more than 30 minutes and the sugar is digested, can you begin to convert fat into sugar. Common weight-loss exercises include jogging and swimming, which must be adhered to for a long time. For example, jogging takes at least 30 minutes. Of course, you can slow down, but you can't stop. If you are overweight, you will lose weight by jogging 1 0km (about 2 hours) every day and jogging1month. In addition, exercise must be adhered to, and you can't fish for three days and dry the net for two days, otherwise your weight will rebound after losing weight. It takes more efforts to lose weight again after the rebound to achieve results.